Auxiliary locking mechanism for safes.



MARSH.

FOR SAFES'.

A. AUXILIABY LOCKING MEGHANISM APPLICATION FILED A PB. 2l, Y

Patented Mar. 16, 1909.

f/ mmmmwmm `c inafter referred to.

PATENT orricn ALEXANDER MARSH., OF FLEM1NGTON,VMISSOURI.

AUXILIABY LOCKING MECHANISM FOR SAFES.

Specification of Letters Patent.

Patented March 16, 1909.

Application filed April 21, 1908. Serial 110.428,44.

To all whom it may concern:

Be it known that I, ALEXANDER MARSH, citizen of the United States, residing at Flemington, in the county of Polk and State 5 of Missouri, have invented certain new and useful Improvements in Auxiliary Locking Mechanism for Safes, of which the following is a specification.

This invention relates to auxiliary safe locking devices for preventing unauthorized persons from obtaining access to a safe when otherwise unlocked, and to prevent the door being forced open throughthe agency of exlosives.

5 With this general object in view, the invention consists in certain novel and peculiar features of construction and organization as hereinafter described and claimed and in order that it may be fully understood, reference is to be had to the accompanying drawing, in which- Figure 1. is a vertical section on the line l, I, of Fig. 2, of a safe embodying my invention. Fig. 2. is a vertical section on the 'line Fig. 3. is an outer face view,

partly broken away, of the safe to disclose mechanism hereinafter referred to. Fig. 4. is

a section on the line 1V 1V, of Fig. 3. Fig. 5.

is a detail perspective view of a sleeve, here- Fig. 6. is a detail perspective view of the crank handle for operating the auxiliary locking mechanism.

ln the said drawing, 1 indicates a safe of the type shown, or any other suitable type,

f having the door 2, provided at its inner side with an eye 3. 4 indicates a hook, normally engaging said eye and hinged at its opposite end to a bracket 5, secured to the body of the safe, the arrangement being such that the hook must swing upward to be disengaged from eye 3.

6 is a crank shaft, arranged transversely in the safe, and journaled at its ends in bearings 7, secured to the body of the safe, one end of f 5 the shaft projecting through its bearing into an opening 8, of the safe.

9 indicates the crank of the shaft, equipped with a pair of collars or enlargements 10, between which is pivotally mounted on said crank, the front end of a link 11, the said link being preferably of spring metal and secured at its o posite end to a flat sleeve 12, fitting sliding y said sleeve being provided with a forwardly ie eye 3 when the hook is engaged therewith,

on hook 4, the front end of rejecting hook or angle tongue 13, to undera being withdrawn from l l l for the purpose of preventing said hook from the eye, it being noticed in this connection that kwhen said hooks are engaged with the eye, the crank 9 of the shaft is projecting downward.

The end of the shaft occupying opening 8 is preferably squared, as shown at 14, and projects into the inner end of the tubular hub 15, of a lock casing also occupying opening 8, the lock casing comprising the body portion 16, rigid with said hub, and the face or cover plate 17 secured to the lock plate and normally ilush with the contiguous outer face of the safe.

The body portion 16, of the casing is provided with a bearing stud 18, in line with a key hole 19, in face plate 17, and rockingly mounted on said stud within the lock casing is a rock bar or lever 20, provided with an angular socket 21, communicating with the key hole and adapted to receive and be turned by a suitable key, not shown because any object of proper size and rectangular in cross section may be em loyed as such key. The ends of lock bar 2() Ihave a pin-and-slot connection at 22 with sliding bolts 23, mounted to reciprocate endwise in suitable uides 24, secured to the locking casing, said bolts being adapted to be projected through the casing and into sockets 25, in the adjacent walls of opening S. 1t will thus be seen that when the bolts are advanced they lock the casing from sliding inward or outward in opening S,

26 indicates a key or crank handle, provided with a cylindrical 'tenon 27, capable of being fitted in the hollow hub 15, but in` capable of having its squared socket 28 engaged by the squared end 14, of shaft 6, unless the lock casing has been 'first pushed inward in opening 8 a sufficient distance, such inward movement being impossible until the bolts 23 are withdrawn, and then occurring under the pressure of the crank handle or key, against the resistance of a helical spring 29, surrounding the shaft and inner end of the hub 15, and bearing at its o posite ends against the lock casing and tie adjacent bearing 7. It will thus be seen that the shaft 6 cannot be turned until the bolts 23 have been withdrawn and the lock casing pushed inward, and that to accomplish the turning of the shaft two different reys are necessary. that the spring 29 is employed to effect the outward movement of the lock casing, after 1t will be understood the crank handle or key is withdrawn from,` pivotally connecting the crank shaft with engagement with shaft 6,' and also enables f' said means, and adapted in the initial part of the operator to more quickly dispose the the shaft movement for causing said means lock casing at the proper point for its bolts to move and leave the hook and eye free to 23 to enter their sockets 25. be disengaged, and in a subsequent part of In practice the shaft is turned in the directhe shaft'movement to effect the disengagetion indicated by the arrow, Fig. l, this ment of said hook and eye said link being action through the medium of link 11, first I adapted to restore the movable parts to sliding sleeve 12 rearward on the hook 4 f their original relation when the shaft moveuntil hook or tongue 13 is withdrawn from ment is reversed, in combination with a lock under eye 3. The continued movement of casing, slidably mounted in the body of the the crank then, through the instrumentality safe and provided with a tubular hub, receivof the link, raises hook 1l, the latter being ing one end of the crank shaft, and with bolts totally withdrawn from the hook by the for locking such case rigidly to the safe, to time the crank 10 attains a horizontal posiprevent access to the contiguous end of said tion. The door 2 may then be opened. If shaft. it is desired .to hold the hook 4 inoperative, j 3. The combination with a safe having a the described movement of the shaft is conj door, of an eye movable with said door, a tinued until the crank has attained the posihook hinged to the body of the safe and nortion shown by dotted lines, Fig. 1, in which I mally engaging said eye, a hook slidingly carposition gravity will maintain it, it being ried by and movable independently of said noticed that after the crank passes the horihinged hook, and normally engaging the said zontal plane of its axis in said movement, it eye, a crank shaft journaled in the safe, and slides sleeve l2 forward upon the hook until a link pivotally connecting the crank of said hook or tongue 13 has attained its original shaft with the said slidablehook. position with respect to hook 4. The move- Y 4. The combination with a safe having a ment of the crank shaft is reversed to restore door of an eye at the inner side of said door, the parts to their original positions, it being a hook hinged to the body of the safe and understood, of course, that the relocking normally engaging said eye, a sleeve mounted action is performed after door 2 1s closed. ,l

slidably on said hook and provided at its From the above description it will be ap` front end with a hook engaging the said eye arent that I have produced an auxiliary to maintain the hinged. hook in engagement ocking mechanism for safes, embodying the therewith, and means for successively imfeatures enumerated as desirable, and I wish parting rearward movement to the hook it to be understood that I reserve the right equipped sleeve and upward movement to to make such changes as properly fall within l the hinged hook. the spirit and scope of the appended claims. 5. The combination with a safe having a Having thus described the invention, what i door and an opening, of a locking device, I now claim as new and desire to secure by comprising a hook and an eye, one adapted Letters Patent is: to be attached to the door and the other to -1. A locking device for safes, comprisinga the safe body, the hook being adapted for hook and eye, one adapted to be attached to pivotal movement, a shaft suitably journaled the door and the other to the safe body, the in the safe and having one end squared and hook being adapted for pivotal movement, projecting into the said spring, a sleeve means slidable longitudinally of the hook for mounted slidingly on the hook and provided normally holding the hook and eye en- I with a hook to engage the eye, a link pivotgaged, a crank shaft journaled in the safe, I ally connecting said sleeve with the crank of and a link pivotally connecting the crank I said shaft,acasing fitting slidingly in the said shaft with said means, and adapted in the initial part of the shaft movement for causing said means to move and leave the hook and opening and provided with an inwardly proe jecting hub receiving the squared end of the shaft, means for locking said casing rigidly eye free to be disengaged, and in a subsequent to the body of the safe to prevent said caspart of the shaft movement to effect the dising being pushed inward to give access to engagement of said hook and eye. said squared end of the shaft, and a spring 2. A locking device for safes, comprising a l for pressing said casing outward. hook and eye, one adapted to be attached to l In testimony whereof I affix my signature, the door and the other to the safe body, the I in the presence of two witnesses. hook being adapted for pivotal movement, i ALEXANDER MARSH. means slidable longitudinally of the hook for l l Titnesses FRED TILLERY, EDGAR SPILLMAN.

normally holding the hook and eye engaged, a crank shaft journaled in the safe, and a link 

